The project, code-named Dragonfly, would blacklist phrases like "human rights," "student protest," and "Nobel Prize," and has resulted in at least seven Google employees quitting for ethical reasons. Other employees have circulated a letter recognizing a "code yellow" emergency, suggesting that the Dragonfly initiative violates Google's ethical code, which states that the company will not build or deploy technologies "whose purpose contravenes widely accepted principles of international law and human rights," according to The Intercept.